Motorcycle Battery Voltage Too High

Either way high or low charging voltage can lead to battery problems.

Motorcycle battery voltage too high.

Can t do better than that. With a voltage between 12 and 15 8 volts dc. Gassing is bad for the battery and also potentially for you as the gasses are explosive. That voltage seems a mite high.

One item of note. I just recently got a new agm battery for my bike this one. A healthy 12 volt motorcycle battery should maintain a range from 9 5 10 5 volts under the load for a good 30 seconds straight. This is a common failure because of the way motorcycle alternators work.

You don t say whether this is on the bike or on mains charge. If the voltage instantly drops to 0 volts that is also a problem. My new battery s voltage from the factory unused read 12 9 v but after using for about half a week of use its holding a. In order to get maximum battery life proper charging voltage must be maintained.

Yes a bad regulator will cause your motorcycle battery to be overcharged. The old one usually read 12 5 v give or take on a dmm. It should be between 12v and maybe 14 8v max. We call this the open cell.

Battery voltage too high. The battery is a little pickier below 13 8 the battery will not fully charge. If the battery begins to hold and then steadily drops in voltage there is a problem. If you see something like that right after you charge your battery when re testing you might want to turn the headlights on for 30 seconds or so and re test because batteries can keep a superficial surface charge revzilla photo.